out of memory? not really!

[Rainer Queck]

Hello NG,

I have a strange situation in one of my apps.
I need to have a couple ob big array. Unfortunately after exeeding a certain
size (wich is not at all the limit of my system)
I get a OutOfMemoryException. Whis is that? Does the framework have limit, I
don't know of?

Here my sample code to demonstarte the problem:
int x = 500 * 1024 * 1024;
Byte[] b = new Byte[x];
Byte[] c = new Byte[x];
Byte[] d = new Byte[x];

Byte array b is allocated without problem.
As soon as I step over allocation c I get the exception!

Thanks for hints, links and help on this problem.

Regards
Rainer Queck

 

[cfps.Christian]

We had the same problem at the company where I work. .NET only allows
itself to use a certain percentage of the system's memory and after
that throws an OutOfMemoryException. I didn't research how to raise
the limit since our application has to be for users will all amounts
of memory so I just got my byte array and chunked up the file into
50mb chunks and moved it around like that.

 

[Doug Forster]

Hi Rainer,

You may be able to improve your situation somewhat by booting with the 3GB
switch and setting the LARGEADDRESSAWARE flag on your exe, but the best
solution is to install a 64 bit OS

Cheers
Doug Forster